Governor for internal-combustion motors



' May 19, 192s. f

R. HUFFORD GOVERNOR FOR INTERNAL COMBUSTION MOTORS Filed June 18. 1925 @attended May i9, i925..

neutroni) H Ur'ronn or New Yonx, N. Y., AssIoNon To n. r. :eno

- ,atleten INC., OF NEW YORK, N. Y., A CORPORATION F NEW YORK.

GovEItNora ron INrnnNnncoMBusrroN morons.

.Application mea June 1s, 192e.l serdei ne. Madea To all whom t may concern: v

Be it known that 1 RAr'MoND Hurroun, a citizen of the United States, and a-resident of New York city, in the county of New York and State of'New York, have invented certain new and useful Improvements in Governorsl for lingual-.Combustion Motors,

of which the-.fellowing is a specification.

ternal combustion motors and has for its object to provide a governor for this purpose which will be moreeilicient and accurate in its action, more easily and accurately regulated, and lessexpensive to construct .than those heretofore in use.-

With these and other objects in view,

' whichwillbe more particularly set -forthin the specification, my invention consists of the noveldetails of construction and combination .of parts hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings:

Figure 1 is a sectional elevation. Figure 2 is a section on the line 2 2 of Figure 1. Figure 3 is a section on the line 3-13 of Figure 1. And Figure L.tis an enlargedsectional view of the means for regulating the action of the piston which completes the closing movement of the valve=which restricts the flow of explosive mixture to the motor. p

- My governor is provided with a shell or body 1 having a cylindrical bore the 'upper -or outlet end of which is reduced in diameter to form a restricted throat 3. A spacing collar 4 is mounted in the upper portion of the bore. A spider 5 is mounted iny thev bore and held in spaced osition therein'b the spacin sleeve 4 an the sleeve 6 which is forme with-a contracted throat at 7. The vspider is provided withv a. centrally-posi tioned cylinder 8. A guide 9 and cylindrical cup 10- are also formed in the spider. A

passage 11 communicates between theA cup 10 and cylinder 8. Into a threaded recess 12 in this spider 5 is screwed a` bushing 13. The outer end of the bushing is -threaded to receive a threaded needle-valve 14, provided 'with a ribbed head 15 which extends into a box-like chamber 16 formed on the body 1. A pointed pin 17, mounted in a ide chamberl, is forced into contact with e head 15 by a spring 19 which vserves to maintain the needle-valve 14,in the position to which it has been adjusted. Mounted in as shown in Figure 2. Theshaft the cylinder'8 isa stem 21, the upper end of which is re uced in diameter and threaded to receive .the valve 22 which ts 'loosely in the cylindrical ,in position. Ports 24 are formed in ithe base of the 'valve 22.- The lower end 25 of the j v piston 2 0 is reduced in ldiameter and thread- My invention relates to governors for 111-,

ed to receive a head 26. The outer wall of the cylinder 8 is threaded and a nut 27 ,-having gear teeth 2 8, is mounted thereon. A spring 2 9, one end of which bears against the nut 27 and the other end 'against the head 26, tends to thrust the headand piston downward until thebaseof the valve 221s in contact with the bottom of the cup 10. The resistance of thespring against the upward movement of the L be 'adjusted by the nut 27. A shaft 30 is mounted in'suitable bearings in the body l,

nucrs COMPANY,

cup 10.` Nut 23'se1fves to secure the valve 22.

pistonv andhead may.

piston 20'having1a uide 30 is provided with e ribbed heed 31 'Whieh extends into the box-like chamber 16, and said shaft also carries a'worm 31 which meshes with'f the gear teeth 2 8y on thegnut 27. ABy ro'- tating 'the shaft 30, the nut 2 7 may be. con`- veniently adjusted. A spring 32- .bears against. the head 31 andlocks it .against rotation.- The-box-like chamber 16 is'provided'with a cover 33- which is secured in position bya pin34.

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The governor is secured to theimanifold" of 4'a motor and ltothe carbureter. by bolts, not'shown, which pass'through the ears 35. I have found that by removing the sleeve v6 and inserting in its place a sleeve'with a greater or lesser contraction at the "throat, I can-satisfactorily govern motors of greater or lesser horse power with the' same accuracy that woul be attained -by using ov.- ernors which` were either larger vor sma 1er, to correspond with the horse power of the motors to which it is to'be attached.

The operation of my governor is as follows: When the engine is running slowly the travel of the mixture from the carbureter through my governor to the engine will'be comparatively sow and the impact of the mixture on the head 26 will not be sufficient to lift the head, and the parts to which it is secured against the resistance 'of gravity and Ithe s ring 29. The weight of the head 26, and t e parts to which it is secured, and the resistance of the soiling 29, as adjusted by the lnut 27, arel such t at when the dow of mi'xs I When the valve 22 is in the closed positiony ture and its velocity, is sulliciently increasedby t e increase in engine speed, the head will be lifted, carrying with it the piston 20 andthe valve 22. .The valve 22 as it is raised restricts the throat 3 and therebyrauses the pressure above the valve to fall below the pressure within tlievbody of the governor,

the valve 22 beingprotected by the cup 10 from impact of the mixture against itsbase and thereby from exerting any lifting ef-- feet upon the piston or the parts'to which it is attached. The pressure beyond the valve 22 is communicated through the passage l1 to the cylinder 8. As the valve 22 is raised this dierence in pressure is rapidly increased and ifythe engine speed is maintained the difference in pressure will cause the piston 20 to rise and lift the valve `22 untll the throat 3 is nearly closed, and Jfurther acfceleration of the engine speed is prevented.

' ulated.. By regulating the resistance of the spring 19' through the, nut' 27 the engine speed at which the initial clcising movement begins may also be accurately regulated,

thereby. enabling my governor to supply fulll charges of the mixture to the motor at all engine speeds which are substantially below the engine speed to which the governor has been adjusted.

The primary means which initiates the `closing movement of the valve 22 is the head 26 andthe secondary means, which is adapted to complete but would not initiate the closing of the movement of the valve 22, is

` the piston 20. My governor, asdescribed,

` is so constructed that the parts move with the minimum of friction and it quickly and accurately responds to'the varying condi-` tions of the flow of mixture through it and vcan -be 'easily and accurately adjustedwhile` in osition.

laims: 4 l 1. A governor for internal combustlon vmotorscomprising in combination a passageway through which explosive mixture may pass to a motor, a `discharge outlet of lesser diameterA than said passageway a cylinder mounted in said through which t e explosive mixturemay pass', a valve mounted in said cylinder and automatic'means positioned upstream from said valve, fonmoving said valve toward said discharge utlet. y

2. A governor for internal combustion motors comprising in combination a passageway through which explosive mixture` may pass to a moto-r, a discharge outlet of lesser diameter than said. passageway a cylinder mounted in said passageway around but not through which the explosive mixture may passageway around but not pass, a cylindrical valve mounted in said L cylinder in operative relation 4to such discharge outlet and automaticl means positioned upstream from said valve for moving said valve toward said discharge outlet.

LA governor for internal combustion motors comprising in combination a passageyway through which explosive mixturer may pass to a motor, a discharge outlet of lesser diameter than said passageway, a cylinder mounted in said passageway around but, not

through which explosive mixture may pass, the interior dia-meter of such cylinder being substantially the same as the diameter of said outletand the axes of such discharge outlet and cylinder being'substantially coincident, a cylindrical valve mounted in said cylinder'inoperative relation to such discharge outlet and automatic means positioned upstream from"said cyliridrical valve for moving said valve toward said outlet.

4c. A governor' for internal combustion motors comprising in combination a shell having a ypassageway through which explosive mixture may pass to the motor, restricted at the discharge end thereof, a cylinder mounted in said passageway, a second cylinder of substantially the same diameter as said restricted throat located above said first mentioned cylinder and below said restricted throat, the axes of said cylinders and said throat being coincident, a passageway o relatively small diameter between said cylinders, a piston mounted in said irst cylinder, a head mounted on the lower end of said piston in the path of the mixture as it passes through the governor and a c lindrical valve mounted within said secon cylinder on the upper end of said piston. June 8th, 1923.`

' RAYMOND HUFFORD. 

